Overhead crane monitoring system

Abstract

An overhead crane monitoring system is for monitoring an overhead crane. The overhead crane includes a travelling body that travels along rails, a traverse trolley that travels in a direction perpendicular to a travelling direction of the travelling body along the travelling body, and a hoisting device mounted on the traverse trolley. The overhead crane monitoring system includes an imaging device (Camera) and a control device. The imaging device is installed on the travelling body. The imaging device is configured to change a recording direction and configured to zoom. The control device controls the imaging device to track and record a hoisting tool raised and lowered by the hoisting device based on an image recorded by the imaging device. This enables providing an operator with an image appropriate for identifying states of the hoisting tool or hoisted load of the overhead crane.

1 . An overhead crane monitoring system for monitoring an overhead crane, the overhead crane comprising:
 a travelling body that travels along rails;   a traverse trolley that travels in a direction perpendicular to a travelling direction of the travelling body along the travelling body; and   a hoisting device mounted on the traverse trolley, wherein   the overhead crane monitoring system comprises:   an imaging device installed on the travelling body, the imaging device being configured to change a recording direction and configured to zoom; and   a control device that controls the imaging device to track and record a hoisting tool raised and lowered by the hoisting device based on an image recorded by the imaging device.   
     
     
         2 . The overhead crane monitoring system according to  claim 1 , wherein
 the control device detects a position and a size of the hoisting tool in the image recorded by the imaging device, and controls the imaging device to track and record the hoisting tool.   
     
     
         3 . The overhead crane monitoring system according to  claim 1 , further comprising
 a display device that displays the image recorded by the imaging device that tracks and records the hoisting tool.   
     
     
         4 . The overhead crane monitoring system according to  claim 1 , wherein
 the image recorded by the imaging device that tracks and records the hoisting tool captures a region below the hoisting tool in a storage area.   
     
     
         5 . The overhead crane monitoring system according to  claim 2 , further comprising
 a display device that displays the image recorded by the imaging device that tracks and records the hoisting tool.   
     
     
         6 . The overhead crane monitoring system according to  claim 2 , wherein
 the image recorded by the imaging device that tracks and records the hoisting tool captures a region below the hoisting tool in a storage area.